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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>练习</title>

    <script type="text/javascript">

    //打印九九乘法表
    /*
    for(var i=1; i<=9;i++){
        for(var j=1; j<=i; j++){
            document.write("<span>"+j+"*"+i+"="+j*i+"</span>");
        }
        document.write("<br />");
    }
    */


    //打印1-100之间的所有质数

    for(var i=2;i<=100;i++){
        var flag=true;
        for(var j=2;j<i;j++){
            if(i%j==0){
                flag=false;
            }
        }
        if(flag){
            console.log(i);

        }

    }

    </script>

    <style>
        /* span{
            display: inline-block;
            width: 80px;
        } */
    </style>






</head>
<body>
</body>
</html>